Urea group-containing organopolysiloxane, method for manufacturing urea group-containing organopolysiloxane, and cosmetic

Abstract

A urea group-containing organopolysiloxane represented by the following formula (1), wherein, R 1 is —R 5 —NHCONH 2 (R 5 is a divalent hydrocarbon group), R 2 is any of a hydrogen atom, a hydroxy group, an alkoxy group, an alkyl group, a fluoroalkyl group, an aryl group, and an aralkyl group, R 3 is R 1 or R 2 , and R 4 is an organopolysiloxane segment represented by the following formula (2), (Q is an oxygen atom or a divalent hydrocarbon group), the urea group-containing organopolysiloxane represented by the formula (1) has one or more R 1 in the molecule, when “c” is 0, “a”+“d”+“f”+“h”+“i” is 1 or more. Accordingly, there is provided a urea group-containing organopolysiloxane that can obtain a cosmetic having excellent cosmetic durability while maintaining a light feel and good spreadability, and a method for manufacturing the same, as well as a cosmetic containing the same.

1 .- 8 . (canceled) 
     
     
         9 . A urea group-containing organopolysiloxane represented by the following average composition formula (1), 
       
         
           
           
               
               
           
         
         in the formula (1), R 1  is —R 5 —NHCONH 2  (R 5  is a divalent hydrocarbon group having 2 to 10 carbon atoms), R 2 s are each independently any of a hydrogen atom, a hydroxy group, an alkoxy group having 1 to 3 carbon atoms, an alkyl group having 1 to 30 carbon atoms, a fluoroalkyl group having 1 to 30 carbon atoms, an aryl group having 6 to 30 carbon atoms, and an aralkyl group having 7 to 30 carbon atoms, R 3  is R 1  or R 2 , and R 4  is an organopolysiloxane segment represented by the following average composition formula (2), 
       
       
         
           
           
               
               
           
         
         in the formula (2), R 1  and R 2  are as described above, and Q is an oxygen atom or a divalent hydrocarbon group having 1 to 3 carbon atoms, 
         in the average composition formula (1) and the general formula (2), “a”, “f” and “i” are each independently 0 to 3, “b” is 0 to 5000, “c” is 0 to 500, “d” is 0 to 100, “e” is 0 to 100, “g” is 0 to 5000, and “h” is 0 to 500; provided that, the urea group-containing organopolysiloxane represented by the formula (1) has one or more R 1  in the molecule, when “c” is 0, “a”+“d”+“f”+“h”+“i” is 1 or more. 
       
     
     
         10 . A method for manufacturing the urea group-containing organopolysiloxane according to  claim 9  comprising:
 subjecting to addition reaction of an organohydrogenpolysiloxane and an unsaturated group-containing urea compound. 
 
     
     
         11 . The method for manufacturing the urea group-containing organopolysiloxane according to  claim 10 , wherein the unsaturated group-containing urea compound is allyl urea. 
     
     
         12 . A method for manufacturing the urea group-containing organopolysiloxane according to  claim 9  comprising:
 subjecting to reaction of an amino group-containing organopolysiloxane and urea. 
 
     
     
         13 . A cosmetic comprising the urea group-containing organopolysiloxane according to  claim 9 . 
     
     
         14 . The cosmetic according to  claim 13 , further comprising water and being in a form of an emulsion system of a water-in-oil emulsion or an oil-in-water emulsion. 
     
     
         15 . The cosmetic according to  claim 13 , further comprising powder. 
     
     
         16 . The cosmetic according to  claim 14 , further comprising powder. 
     
     
         17 . The cosmetic according to  claim 13 , wherein the cosmetic is a skin care cosmetic, a makeup cosmetic, a hair cosmetic, an antiperspirant cosmetic, or an ultraviolet protection cosmetic. 
     
     
         18 . The cosmetic according to  claim 14 , wherein the cosmetic is a skin care cosmetic, a makeup cosmetic, a hair cosmetic, an antiperspirant cosmetic, or an ultraviolet protection cosmetic. 
     
     
         19 . The cosmetic according to  claim 15 , wherein the cosmetic is a skin care cosmetic, a makeup cosmetic, a hair cosmetic, an antiperspirant cosmetic, or an ultraviolet protection cosmetic. 
     
     
         20 . The cosmetic according to  claim 16 , wherein the cosmetic is a skin care cosmetic, a makeup cosmetic, a hair cosmetic, an antiperspirant cosmetic, or an ultraviolet protection cosmetic.